TWI739007B - Dome cameras and power consuming electronics devices - Google Patents

Abstract

A power consuming electronics device that dissipates internal device heat via a heat sink is disclosed. The power consuming electronics device includes first and second complementary housing parts. The first housing part includes a first surface ending at a first peripheral edge, and the second housing part including a second surface ending at a second peripheral edge. The power consuming electronics device also includes a heat sink having an air exposed surface that is interposed between the first and second peripheral edges. Surface edges of the air exposed surface abut the first and second peripheral edges of the housing parts and are respectively matched therewith in shape and dimension so that an overall composite surface formed by the first and second surfaces of the housing parts and the air exposed surface of the heat sink is substantially continuous and uniform.

Description

Dome camera and power consumption electronic device

The subject matter is related to dissipating heat through a radiator, and in particular to an electronic device that dissipates the heat of the internal device through a radiator having an air-exposed surface.

Thermal management is about how to reduce and control the excessive heat generated by electronic devices and circuits in order to improve reliability and prevent premature failure. In conjunction with thermal management, one method for cooling electronic devices and circuits is to provide one or more heat sinks. A heat sink is a metal block with a special design to conduct and radiate heat from an electrical component.

According to an exemplary embodiment, a power consuming electronic device is provided. The power consuming electronic device includes a first complementary housing part and a second complementary housing part. The first housing portion includes a first surface ending at a first peripheral edge, and the second housing portion includes a second surface ending at a second peripheral edge. The power consumption electronic device also includes a heat sink having an annular shape and an air-exposed surface inserted between the first peripheral edge and the second peripheral edge. The surface edges of the air-exposed surface adjacent to the first peripheral edge and the second peripheral edge of the housing parts match the first peripheral edge and the second peripheral edge in shape and size, respectively, so that the The first surface of the housing part The second surface and the air-exposed surface of the heat sink form an overall composite surface that is substantially continuous and uniform. The power consuming electronic device also includes at least one heat generating device component located in the electronic device and connected to the heat sink. When the electronic device is turned on and the device component generates heat, the heat is sucked away from the device component via the heat sink.

According to another exemplary embodiment, there is provided a dome camera including a first hemispherical housing portion, the first hemispherical housing portion including a first surface that ends at a first peripheral edge. The dome camera also includes a second hemispherical housing part that includes a second surface that ends at a second peripheral edge. The second hemispherical housing part is complementary to the first hemispherical housing part. The dome camera also includes a heat sink having an air-exposed surface that is annular in shape and inserted between the first peripheral edge and the second peripheral edge. The surface edges of the air-exposed surface adjacent to the first peripheral edge and the second peripheral edge of the housing parts match the first peripheral edge and the second peripheral edge in shape and size, respectively, so that the The first surface and the second surface of the housing portion and the air exposed surface of the heat sink form an overall composite surface that is substantially continuous and uniform. The dome camera also includes at least one heat generating device component located in the dome camera and connected to the heat sink. When the dome camera is turned on and the device component generates heat, the heat is sucked away from the device component via the radiator.

According to yet another exemplary embodiment, a device including a first complementary housing part and a second complementary housing part is provided. The first housing portion includes a first surface that ends at a first peripheral edge. The second housing part includes a second surface that ends at a second peripheral edge. A heat sink has an air exposed surface interposed between the first peripheral edge and the second peripheral edge. The surface edge of the air-exposed surface is matched with the first peripheral edge and the second peripheral edge of the housing parts for flush abutment to provide the housing The combination of part of the first surface and the second surface and the air-exposed surface of the heat sink to form an overall composite surface is inconspicuous. At least one heat generating device component located in the device is connected to the heat sink. When the device component generates heat, the heat is sucked away from the device component via the heat sink.

2-2: line

100: Dome camera device

110: Movable spherical assembly/spherical assembly

120: static frame part/frame part

122: flat surface/surface

123: upper rounded edge

124: first housing part/first complementary housing part

128: radiator

130: Groove

132: second housing part/second complementary housing part

136: Peripheral edge/surface edge

137: Complementary shape buckle/buckle

140: Peripheral edge/surface edge

144: Edge/Surface Edge

148: Edge/Surface Edge

156: External groove

158: Optical clear window/transparent window

162: IR transparent window/IR small lens

210: Lens and imaging unit/imaging unit

214: IR transmitter

218: Sensor printed circuit board assembly

222: Digital printed circuit board assembly

226: Thermal Interface Material

422: Washer

302: Aperture

304: Status indicator

406: inner ring

416: There are crack holes/holes

432: Fixture

435: signal cable

433: IR transmitter printed circuit board assembly

185: Aperture

186: Dovetail

502: Arm

Reference will now be made to the drawings by way of example: FIG. 1 illustrates a perspective view of a dome camera device according to at least one example embodiment, the dome camera including a movable spherical assembly and a stationary frame portion; FIG. 2 Illustrates a cross-sectional view of the spherical assembly of the dome camera shown in Figure 1 taken along the line 2-2; Figure 3 illustrates a perspective view of the spherical assembly shown in Figure 2 and of the spherical assembly A housing part is shown partially disassembled to reveal the internal components of the spherical assembly; Figure 4 is an exploded view of the internal components shown in Figure 3; Figure 5 is a rear view of the spherical assembly shown in Figure 2 Perspective view; and FIG. 6 illustrates a side elevation view of the spherical assembly shown in FIG. 2, with a shell part of the spherical assembly shown as being partially disassembled to reveal the details of a heat sink.

Similar or identical reference signs may be used in different drawings to represent similar example features illustrated in the drawings.

Related application materials

This application claims the right of priority to the provisional application No. 62/515,330 filed on June 5, 2017, and the entire content of the provisional application is quoted accordingly The method is incorporated into this article.

It will be understood that when an element is referred to herein as "being connected to another element", "communicating with another element" or "coupled to another element", it can be directly connected to the other element, directly It communicates with other elements, or is directly coupled to other elements, or intervening elements may be present. In contrast, when an element is referred to herein as being "directly connected to another element, "directly communicating with another element", or "directly coupled to another element", there is no intervening element. Other words used to describe the relationship between elements should be interpreted in a similar way (that is, "between" and "directly between" and "adjacent" to "Directly adjacent" etc.).

As used herein, the term "circular" refers to a circular shape with respect to two dimensions, and refers to a section of a sphere at least partially defined by opposite boundaries, which are defined by the sphere It is composed of two circles drawn on its surface.

Certain exemplary embodiments are related to cameras (for example, dome cameras and other types of security cameras); however, certain exemplary embodiments are related to electronic devices rather than cameras. For example, the example embodiments may be applied to smart phones, handheld computing devices, smart kitchen devices, unmanned aircraft, and so on.

Reference is now made to FIG. 1, which illustrates a perspective view of a dome camera apparatus 100 according to at least one example embodiment. The dome camera device 100 includes a movable spherical assembly 110 and a stationary frame portion 120. Relative to the movement of the spherical assembly 110, the spherical assembly 110 is tilted approximately from 0° to 90°, and the panoramic rotation is more than 360° to ensure that the dome camera device 100 can be set to a desired field of view. In addition, a part of the spherical assembly 110 is sized to fit in the frame portion 120. The flat surface 122 of the frame portion 120 covers the inside of the frame portion 120.

The upper circular edge 123 of the frame portion 120 is configured to be mounted flush with a suitable flat surface, such as, for example, a ceiling tile. In addition, the dome camera device 100 can be installed on a ceiling that has a surface parallel to the surface 122 and also parallel to the ceiling. The dome camera device 100 can also be mounted on a hanger which has a surface parallel to the surface 122 and also parallel to the ceiling, and the hanger can extend downward from the ceiling. The dome camera device 100 can also be mounted on a wall having a surface parallel to the surface 122 and also parallel to the wall.

The spherical assembly 110 includes a first housing part 124, a heat sink 128 and a second housing part 132. According to at least some examples, the first housing portion 124, the second housing portion 132, and the frame portion 120 may all be made of a combination of polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS) become.

Regarding the heat sink 128, this may be made entirely or partially of aluminum according to some examples. The heat sink 128 has an air-exposed surface interposed between the first housing part 124 and the second housing part 132. Since the edges 144 and 148 of the air-exposed surface surround a spherical surface to form a surface curve of a complete trace, the air-exposed surface of the heat sink 128 is annular. In alternative exemplary embodiments, the exposed surface has some other type of shape. For example, in the case of an electronic device having a housing having an overall rectangular prism shape, the exposed surface may adopt the size of four rectangles configured to match the overall shape of the housing. Other suitable shapes are also expected. For example, in the case of an electronic device having a housing having an overall triangular prism shape, the exposed surface may adopt the size of three rectangles configured to match the overall shape of the housing. As yet another example, in the case of an electronic device having a housing having an overall pentagonal prism shape, the exposed surface may adopt the size of five rectangles configured to match the overall shape of the housing. Therefore, many different shapes are possible and expected.

One of the effects of the heat sink 128 with an air-exposed surface instead of no such surface (that is, the heat sink is completely contained inside the spherical assembly 110) is that the heat transmitted through the heat sink can be radiated outward to the surrounding air. According to some examples, the air-exposed surface of the heat sink 128 is a finishing surface, wherein the finishing is an electric coating (e-coating) or a powder coating that can increase the efficiency of radiant heat transfer to the surrounding environment. Therefore, the heat sink 128 allows a larger amount of permitted heat to be generated in the spherical assembly 110 of the dome camera device 100 than originally possible. In this way, heat generating components that are usually found outside the spherical assembly 110 (for example, in a separate camera tail assembly, such as in the jointly owned title "Security Camera Having a Cable Assembly with an Integrated Processing Module "US Patent No. 9,167,137 showed and explained one of them) was brought into the spherical assembly 110. For example, regarding an example in which the camera device is attached to the camera tail assembly, internalizing the heat generating component within the spherical assembly 110 can result in a reduction in size or even the elimination of the camera tail assembly. According to at least some examples, the heat sink 128 facilitates maintaining the ambient temperature of one of the internal components of the spherical assembly 110 within any suitable range that is not outside the international or other recognized safety standards with respect to the time of operating the camera; The exposed surface has a touch temperature that is not within any suitable range outside the international or other recognized safety standards.

As far as the geometry of the heat sink 128 is concerned, the surface edge 144 of the air-exposed surface of the heat sink 128 adjoins a peripheral edge 136 of the first housing portion 124. Similarly, the surface edge 148 of the air-exposed surface of the heat sink 128 abuts a peripheral edge 140 of the second housing portion 132. Also, it should be noted that the term "peripheral edge" as used herein is sometimes referred to as a "separation line" or a "division line" by those familiar with molding (for manufacturing) technology.

As shown in FIG. 1, the surface edges 144 and 148 match the peripheral edges 136 and 140 in shape and size, respectively, so that the air-exposed surface of the heat sink 128 and the first mutual The surfaces of the complementary housing portion 124 and the second complementary housing portion 132 form an overall composite surface that is substantially continuous and uniform. In addition, it can be considered that there is flush abutment between the above-mentioned edges to provide the overall composite surface with unobtrusive combination.

It will be noted that since the overall spherical shape of the surface edge 136 surrounding the assembly is depicted as a circle larger than the surface edge 140, the circle depicted by the surface edge 144 is also larger than the circle depicted by the surface edge 148. The illustrated heat sink 128 therefore tapers towards the rear in the area of the exposed surface. Also, in the illustrated exemplary embodiment, the peripheral edge 136 is located at one of the midpoints of the spherical assembly 110. This effect can be used to limit the number of parts required for spherical shape construction when using traditional molding procedures. . In alternative exemplary embodiments, a different tapering and/or expansion of this heat sink area is expected.

FIG. 2 illustrates a cross-sectional view of the spherical assembly 110 of the dome camera device 100 shown in FIG. 1. As shown, multiple components are housed in the spherical assembly 110, including a lens and imaging unit 210, an IR emitter 214, a sensor printed circuit board assembly (PCBA) 218, a digital PCBA 222, and The thermal interface material 226 positioned between the digital PCBA 222 and the heat sink 128 (in the illustrated example embodiment, more specifically, the thermal interface material 226 is a gap pad of a suitable size). Regarding the lens and imaging unit 210, it captures images and videos of a scene in the field of view of the dome camera device 100. The captured images and videos are processed in the PCBA coupled to the lens and imaging unit 210. This processing may include formatting the output image data into various image standards, such as, for example, H.264 or H.265. In addition, this processing may further include: analyzing the captured images and videos using video analysis to detect and classify the targets; and compressing, encoding, and decoding the captured images and videos.

Referring to both FIGS. 1 and 2, the spherical assembly 110 includes an optical clear window 158 and an IR transparent window or small lens 162. The IR emitter 214 is positioned behind the IR transparent window 162. Regarding the transparent window 158, it allows light outside the dome camera device 100 to pass into the spherical assembly 110, and the light is then captured by the imaging unit 210 to form images and videos. The image sensor can be any part of the sensor deemed suitable by those familiar with the technology, including, for example, CMOS, NMOS, or CCD.

Regarding the IR small lens 162, it can be made of a black material that allows IR light to pass through, thereby helping the IR emitter 214 to blend into the appearance of the spherical assembly 110. The use of a smooth spherical surface incorporating the IR lenslet 162 and the transparent window 158 makes it more difficult to discern which direction the imaging unit 210 faces, and allows a smaller architecture of the dome camera device 100. Also, it should be noted that in some examples, the dome camera device 100 may include neither the IR emitter 214 nor the IR lenslet 162. In other words, the IR section of the dome camera device 100 is an optional section. The absence of an image of the IR section of the dome camera device 100 may result in a reduced demand for heat dissipation.

Referring to FIG. 2, the illustrated heat sink 128 defines a groove 130 that extends around the heat sink 128 in a complete circle. The groove 130 is sized and shaped to align with a complementary buckle 137 of the second housing portion 132. This configuration keeps the second housing part 132 fixed to the heat sink 128 while allowing the azimuth rotation of the heat sink 128 and the first housing part 124 relative to the second housing part 132.

FIG. 3 illustrates a perspective view of the spherical assembly 110 in which the first housing part 124 is shown in a partially disassembled state to reveal the internal components of the spherical assembly 110. The outer groove 156 on the first housing part 124 (which is provided to alleviate molding problems) is positioned parallel to the rotation direction of the spherical assembly 110. Figure 3 also shows an aperture defined in the annular wall of the radiator 128 302. The aperture 302 is exposed to a switch provided to achieve a reset of one of the dome camera apparatus 100 to a factory default value. A status indicator light 304 is adjacent to the aperture 302 to facilitate the provision of visible light indicating status information.

FIG. 4 is an exploded view of the internal components of the spherical assembly 110 (shown in FIG. 3). As previously described in this article, the illustrated spherical assembly 110 includes two PCBAs: the sensor PCBA 218 and the digital PCBA 222. The sensor PCBA 218 contains exposed copper in the form of contacts on the underside of the board. During the assembly of the spherical assembly 110, this exposed copper is in contact with the inner ring 406 of the heat sink 128. This direct contact between the inner ring 406 and the exposed copper facilitates the transfer of heat from the sensor PCBA 218 to the heat sink 128. In contrast to the sensor PCBA 218, the digital PCBA 222 is thermally connected to the heat sink 128 via the thermal interface material 226. In at least one example, the thermal interface material 226 is directly attached to the semiconductor chip of the digital PCBA 222 that generates most of the heat. The semiconductor chip may be a system on chip (SoC), for example.

A plurality of cracked holes 416 are defined in a rear wall of the heat sink 128. The holes 416 can facilitate the reduction of the temperature in the area of the heat generating internal components by providing a path for the hot air to escape to the area behind the spherical assembly 110. When the spherical assembly 110 is fully assembled, the hole 416 will be covered by the second housing portion 132; however, referring to Figure 5 showing a rear perspective view of the spherical assembly 110, the second housing portion 132 defines an aperture 185, which The aperture allows hot air to escape the spherical assembly 110. In the illustrated example embodiment, the aperture 185 is located between the ends of the dovetail 186. In at least some instances, the aperture 185 additionally serves as a cable channel through which the cable passes to carry power to the device components.

Referring again to FIG. 4, the lens and imaging unit 210 includes a clamp 432. The clamp 432 is used to hold the lens and the imaging unit 210 in a proper position after focusing with a fixed focus lens. The IR transmitter PCBA 433, one of the fixed IR transmitters 214, is also shown. signal cable 435 couples the IR transmitter PCBA 433 to the digital PCBA 222.

Next, a washer 422 is also shown in FIG. 4. The gasket 422 is positioned to abut the inner side of the spherical assembly 110 and thereby provide an opaque barrier to separate the IR emitter 214 from the lens and the imaging unit 210.

6 illustrates a side elevational view of the spherical assembly 110, in which the second housing portion 132 is shown as being disassembled from the rest of the spherical assembly 110 to reveal the details of the heat sink 128. The groove 130 is clearly visible. Also, the buckle 137 is shown as being located on the arm 502. Any suitable number of arms similar to the arms 502 may be provided on the second housing part 132. As an alternative to the illustrated arm 502, a buckle similar to the illustrated buckle 137 may be incorporated into and integral with the inner surface of the second housing portion 132 .

Specific changes and modifications to the described embodiments can be made. For example, although certain embodiments of the present invention are designed to be included in a camera (for example, a dome camera), other alternative embodiments of the present invention are suitable for other types where an exposed heat sink is appropriate的电子装置。 The electronic device. These other types of electronic devices may include, for example, drones, mobile electronic devices, smart kitchen devices, and so on. Those skilled in the art can make necessary design modifications between the camera embodiment and these alternative embodiments without undue difficulty or inventive effort. Therefore, the above-discussed embodiments are considered to be illustrative rather than restrictive, and the present invention should be construed as being limited only by the scope of the attached patent application.

2-2: line

100: Dome camera device

110: Movable spherical assembly/spherical assembly

120: static frame part/frame part

122: flat surface/surface

123: upper rounded edge

124: first housing part/first complementary housing part

128: radiator

132: second housing part/second complementary housing part

136: Peripheral edge/surface edge

140: Peripheral edge/surface edge

144: Edge/Surface Edge

148: Edge/Surface Edge

156: External groove

158: Optical clear window/transparent window

162: IR transparent window/IR small lens

Claims (18)

A dome camera, comprising: a first hemispherical housing part, which includes a first surface ending at a first peripheral edge; a second hemispherical housing part, which includes a snap And a second surface ending at a second peripheral edge, the second hemispherical shell part is complementary to the first hemispherical shell part; a heat sink, which defines a groove and has An air-exposed surface of a ring shape and inserted between the first peripheral edge and the second peripheral edge, and adjacent to the first peripheral edge and the second peripheral edge of the housing parts, the air-exposed The surface edge of the surface is matched with the first peripheral edge and the second peripheral edge in shape and size, respectively, so that the first surface and the second surface of the housing parts and the air passing through the radiator An overall composite surface formed by the exposed surface is substantially continuous and uniform; and at least one heat generating device component located in the dome camera and connected to the heat sink, wherein the dome camera is connected and When the device component generates heat, the heat is sucked away from the device component through the radiator, and the shape of the buckle is complementary to the groove, and the groove is sized and shaped to align with the buckle allow. Such as the dome camera of claim 1, wherein the first hemispherical housing portion defines a first housing space, the heat sink defines a second housing space extending between the surface edges, and the The second hemispherical shell part defines a third shell space, and an overall shell space of the dome camera is constituted by the first shell space, the second shell space and the third shell space. Such as the dome camera of claim 2, wherein the at least one heat generating device component includes a sensor printed circuit board assembly and a digital printed circuit board assembly located in the second housing space. The dome camera of claim 1, wherein the air-exposed surface of the heat sink is a finishing surface that is electro-coated or powder-coated. Such as the dome camera of claim 1, wherein both the first hemispherical housing part and the second hemispherical housing part are made of a combination of polycarbonate and acrylonitrile-butadiene-styrene . A power consuming electronic device, comprising: a first complementary housing part and a second complementary housing part, the first housing part includes a first surface that ends at a first peripheral edge, and the The second housing part includes a buckle and a second surface ending at a second peripheral edge; a heat sink defines a groove and has a closed curve shape and is inserted into the first peripheral edge and One of the second peripheral edges has an air-exposed surface, and the surface edges of the air-exposed surface adjacent to the first peripheral edge and the second peripheral edge of the housing parts are respectively the same in shape and size as the The first peripheral edge and the second peripheral edge match such that an overall composite surface formed by the first surface and the second surface of the housing parts and the air-exposed surface of the heat sink is substantially continuous And uniform; and at least one heat generating device component located in the electronic device and connected to the heat sink The electronic device is a dome camera, and the first housing part and the second housing part form a spherical-shaped housing of the dome camera when assembled with the heat sink. When the device is switched on and the device component generates heat, the heat is sucked away from the device component through the radiator, and the shape of the buckle is complementary to the groove, and the groove is sized and shaped to Align with the buckle. The power consumption electronic device of claim 6, wherein the at least one heat generating device component includes a sensor printed circuit board assembly and a digital printed circuit board assembly contained in the spherical shell. For example, the power consumption electronic device of claim 7, further comprising a thermal interface material in the spherical shape housing and positioned between the digital printed circuit board assembly and the heat sink. The power consumption electronic device of claim 7, wherein the sensor printed circuit board assembly has exposed copper in direct contact with the heat sink. The power consumption electronic device of claim 6, wherein the air-exposed surface of the heat sink is a finishing surface that is electro-coated or powder-coated. The power consumption electronic device of claim 6, wherein each of the first peripheral edge and the second peripheral edge is at least partially in a conic shape. A power consuming electronic device, comprising: a first complementary housing part and a second complementary housing part, the first housing part includes a first surface that ends at a first peripheral edge, and the The second housing part includes a buckle and a second surface that ends at a second peripheral edge; a heat sink that defines a groove and is inserted into the first peripheral edge and the second peripheral edge One of the air-exposed surfaces, and the surface edge of the air-exposed surface is matched with the first peripheral edge and the second peripheral edge of the shell parts to achieve flush abutment, so as to provide the shell The combination of the first surface and the second surface of the body portion and the air-exposed surface of the heat sink forming an overall composite surface is inconspicuous; and at least one heat generating device component located in the device and passing through Connected to the heat sink, wherein the device is a dome camera, and the first housing part and the second housing part form a spherical-shaped housing of the dome camera when assembled with the heat sink, wherein When the device component generates heat, the heat is sucked away from the device component through the radiator, and the shape of the buckle is complementary to the groove, and the groove is sized and shaped to match the buckle alignment. The power consumption electronic device of claim 12, wherein the at least one heat generating device component includes a sensor printed circuit board assembly and a digital printed circuit board assembly contained in the spherical shell. For example, the power consumption electronic device of claim 13, further included in the spherical shape housing And it is positioned as a thermal interface material between the digital printed circuit board assembly and the heat sink. The power consumption electronic device of claim 13, wherein the sensor printed circuit board assembly has exposed copper in direct contact with the heat sink. The power consuming electronic device of claim 12, wherein the air-exposed surface of the heat sink is a finishing surface that is electro-coated or powder-coated. Such as the power consumption electronic device of claim 12, wherein each of the first peripheral edge and the second peripheral edge is at least partially in a conic shape. For example, the power consumption electronic device of claim 12, wherein the first complementary housing part and the second complementary housing part are both made of polycarbonate (PC) and acrylonitrile-butadiene-styrene Made by a combination.

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